Eric said:
“When I say corrupt, I mean corrupt as far as Premiere is concerned. It still may play fine in a media player “
Thanks Eric. Coincidently I noticed another problem that might be related to what you said and I ask for any comments.
I began 2-hr video project in PPro CS4 consisting of a dozen 10-min clips. Original clips are mostly 320×240 wmv3 30fps. I used the AVC File Converter to change format to 720×480 mpg2 at 29.97 – (convert to .avi didn’t convert well). Then imported the 720x files to PPro timeline. When they played on PPro monitor, the head of the person talking (tight closeup) would frequently move from side to side with a shadow frame hesitating 1-2 frames behind the real image then snapping quickly to the real-life movement frame position to caught up. It’s as though every 5-6 seconds a sticky frame would freeze for a instant before disappearing, or appearing to caught up the real image position. It’s like a sticky shadow-image falling behind (1 or 2 frames) in the movement – in this case, the person’s head movement. At first I thought it looked as though the 3rd & 4th frames were missing, giving a jerky effect. But it’s really a stickiness of past frames occuring every 5-10 seconds of playback.
I played the file in Win Media player and the footage looks fine. I re-converted the original file format again to 720 at 29.97, but no change. AND GET THIS: I moved the original footage – 320×240 wmv3 30fps – to the sequence timeline preset at 720×480 29.97, and the clip played fine. But converted to 720×480 mpg2 at 29.97, and it plays jerky or sticky even in a 720×480 29.97 preset sequence timeline.
Amazingly, I previously used similar types files from the same footage pool – 320×240 wmv3 30fps and converted to 720×480/29.97 mpg2 – in another project preset to 720×480 at 29.97 and all went well.
I’m perplexed at this. The numerous source footage files all varied in format and fps before being converted to 720×480 29.97. So why do some work and others don’t? It’s bizarre. Sidenote: these files are not the highest quality footage and I have no idea of the model cam that shot them.
Thanks again,
Mike
Sager NP-9262 Notebook, Intel Quad Q6600, 4GB DDR2, nVidia 8800m GTX, 3x-Seagate 500GB, WUXGA, Vista Premium-x64 – Production Premium Suite CS4